Stepsister's beauty enhancement by me and my massive cock

After a long and tiresome day at work, I found my stepsister lounging on the couch, feeling rather down about her appearance. Her self-esteem was at an all-time low due to her perceived flaws - small boobs and a flat ass. Being the caring stepbrother that I am, I decided to lend a helping hand (or rather, my monster cock). I suggested we could use my magical powers to enhance her beauty, and with a little persuasion, she agreed. I proceeded to work my magic, using my massive tool to give her the voluptuous figure she had always desired. Her small boobs grew to be perky and ample, while her flat ass became a round, bouncing masterpiece. The transformation was incredible, and I couldn't resist the urge to take her right then and there. The sex was intense, leaving her completely satisfied and me covered in hot, sticky cum.